package com.example.liangxinxin;

import android.app.Activity;
import android.os.Bundle;

import androidx.appcompat.app.AppCompatActivity;

public class DataActivity extends AppCompatActivity {
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //实例化控件
        setContentView(R.layout.activity_main2);
        //初始化数据
    }
}
